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A Java applet that illustrates the utility of the sensitivity and complementary sensitivity functions for linear control system design. Sketch a reference input and disturbance input with the mouse, and select a sensor...

Dr. Mark Francek of Central Michigan University has created this helpful website for science educators and students interested in the fields of earth science and geography. This clearinghouse of useful educational...

This site includes an interactive Java applet for control systems. Users may drag open-loop corner frequencies with the mouse to improve tracking performance and reject sensor noise in a unity-feedback system.

For the phasor phanatic, created Hsi Chen Lee of Johns Hopkins University, an applet that offers 4 ways to generate and observe continuous-time harmonic phasor sums and the corresponding fourier series.

A Java applet for signal sampling at various sampling frequencies, and signal reconstruction from samples using various low-pass filter cutoff frequencies. Select from provided signals, or draw a signal with the mouse....